Year	Number
2004-01-01	1.1269
2005-01-01	1.2078
2006-01-01	1.3536
2007-01-01	1.6147
2008-01-01	2.0394
2009-01-01	2.4697
2010-01-01	2.5968
2011-01-01	2.6661
2012-01-01	2.6744